Trap for conductor pipes



i' .f 6 1927. Senti F. A. TRAUT TRAP'FOR CONDUCTOR PIPES Filed July 50 1925 Patented Sept. 6, 1927'.v

` rnnnnizrcx A. yTRAUT, or BUFFALO, NEW YORK.

1,641,938 PATENT OFFICE..

TRAP :Fon CONDUCTOR Piras.

Application nieu July 3o, 1925. serial No. 47,030.

This invention relates to a trap for use in connection with a pipe whereby rain water is conducted-from the roof of a building to the sewer' pipe underground.

' It'is well known that sewers often become clogged ,by sticks, rags and similar refuse which is washed fromftlie roof and carried by the co-nductor pipe to the sewer Aand on this 'account involvingconsiderable expense and -labor in removing the obstruction.

:The object of this invention is the provision of` simple, inexpensive and efiicient means for preventing such refuse froinr i reaching` the sewer and to that end consists generally of means which are .associated with the conductor pipe and serve to separate and detain any sticks, rags or the like but permit the clear water to pass to the sewer or drain and is so organized that the same may be readilycleaned and also prevented from freezing in winter time.

In the accompanyingdrawings Figure 1 is a vertical section of my improved trap for conductor pipes. Y n

Figure 2 is a fragmentarycross section of the same taken on line 2-2, Fig. 1.

Figure 3 is a fragmentary vertical section, on an enlarged scale, showing the bend i or safety 1oy-pass for preventing water from remaining in the tiap and freezing inwinter time.

Similar characters of reference indicate i `4like partsthrougliout the several views.

The numeral 10 represents the lowerend or outlet of the conductor pipe which carries the rain water from the roof of the building and 11 the inlet or upper end of the drain or sewer-pipe intended to receive the water. Between the conductorpipe and sewer pipe any improved trap is arranged and in its preferred construction this trap, as shown in the drawings, is constructed as follows The numeral 12 represents the upper pipe Sectio-n of the trap which communicates at its upper end with the conductor pipe 10, and 13 represents the lower pipe section of the trap which communicates with the sewer or drain pipe 11. The opposing parts 14, 15 of the upper and lower pipe sections are in clined from the upper pipe section toward the lower pipe section for a purpose which will presently appear. The interior of this inclined passage lis provided with an annular rearwardly facing shoulder' 16 and in rear of the lower part of this shoulder this passage is provided with a transverse upwardly of a screen 18 which latter rests at its lowerv A end in the groove 17 and is detachably connected at its upper'end with said shoulder by a screw 19. On the upper side of the lower pipe section the same is provided adjacent to the rear side of the screen with a clean-.out opening 2O through which the screen may be removed for cleaning purposes when required, this clean-out opening being normally closed by a capor plug 21 having a screw connection 22 with the lower pipe section.

The numeralk 23 represents an upright catch pocket which is adapted to receive the refuse separated from the roof water. This pocket communicates at its upper end with that part of the underside of the inclined passage which is formed in the upper pipe section and arranged immediately in front of the screen. The lower end of the pocket is provided with a removable closure consistingl preferably of -a cap 24: having a screw connection 25 with the pocket.

Immediately above the lower end of the pocket the saine is connected by relief means withv the adjacent part of the lower pipe section so as to enable the water in the pocket to slowly drain out of the same into the lowerpipe section. The preferred form of these relief means shown in the drawings consist of aboss 261 arranged on the exterior of the pocket and provided with an inner reducedrelief duct 26 opening into the pocket and an outer enlarged socket 27 having an internal screw thread and forming an outwardly facing shoulder 28, a relief pipe 29 of reduced diameter having a plain lower end which projects through an opening 30 in the lower pipe section and having its upper part provided with an external ange 31 and arranged within the socket, a screen 32 arranged in the socket 27 between the shoulder 28 and the VHarige 31, and a clampinfr sleeve 33 surrounding the relief pipe an bearing against the outer side` of the flange 31 and having an external screw thread engaging with the internal thread of the socket.

As the water descends in the upper pipe section it rst fills the pocket and thereafter the water flows through the main screen 18 and is then conducted by the lower pipe section to the sewer. Any refuse, such as small sticks, rags, or the like, which may be washed down from the root by the rain is intercepted by the screen and prevented from reaching,- the sewer and clogiging` the saine. Instead oi' this the sticks, rags and other refuse pass troni the lront side oit the screen downwardly into the catch pocket wherein the saine collects and may he renioved from tinie Jto time upon lirst del'aehiug the hottoin closure 24C. The reinoval ot the refuse troni the screen is facilitated by the infoniing slreain ol water which, due to the downward inclination oli the opposing' parts or' the upper and lower pipe sections containing; the niain screen, caus the refuse to he washed downwardly troni the screen and into the catch pocket, thereby maintaining1 the latter constantly in the highest state of ciliciency.

1When the rain ceases the water in the pocket ilows slowly out of the saine through the reduced reliel passage into the lower section ol2 the conductor pipe, thcreloy ai'oidinpr the 1iossiliility of water 'freezing in Athe pocket in cold weather and damaging' the trap. Sticks, rags and large particles are prevented iiroui passing); through the reliei passage hy the sniall screen therein and i'lE the latter should lieconie elopocd it lan he easily removed and cleaned upon first unscrewing the clamping sleeve.

I claim as nre invention z l. A trap for conductor pipes coinprisingl an upper inlet pipe section, a lower outlet pipe section, a screen arranged between said upper and lower pipe sections, a poflcet haring an inlet at its upper end which con11nuni- Cates with said upper pipe section in Afront of said screen. and a reduced relief pipe connecling1 the lower part ol said pocket and said lower pipe section.

2. A trap ilor conductor pipes comprising an upper inlet pipe section, a lower outlet pipe section, a screen arranged between said upper and lower pipe sections, a poclieiL having an inlet at its upper end whirh communicates with said upper pipe section in front of said screen7 a reduced relief pipe connecting the lower part oi said pocket and said rfi-linee lower pipe section, and a screen arranged in the passage through said relief pipe.

3. A trap for conductor pipes comprising an upper pipe section, a lower pipe section communicating at its upper end with the lower end of the upper pipe section, the passage in the opposing` parts of said pipe seetions being provided with a rearwardly facinf; annular shoulder and a transverse groove adjarent to the lower part of said shoulder, a screen arranged in said passage and enpaging the marginal part oi its front side with said shoulder and resting,- with its lower part in said groove, a screw connecting the upper part of said screen with said shoulder, said lower pipe section being provided in its upper part adjacent to said shoulder with a clean-out opening through which the screen may he renioved, a screw plugr for closing said clean-out opening, and a catch pocket having' its upper end communicating with the underside of said upper pipe section adjacent to the `front side orf said screen.

el. ik trap for conductor pipes comprising an upper pipe section, a lower pipe section, a screen arranged between said upper and lower pipe sections, a catch pocket communicatinov at its upper end with the lower parto'l said upper pipe section adjacent to the Yl'ront side ot said screen, and relief means for slowly draining the water from the pocketl into said lower pipe section comprising a hess arranged externally on the lower part oi the pocket and containingl an inner relief duet and an outer enlarged socket forming an internal outwardly :facing shoulder, a relier pipe having' a lower part projecting through said lower pipe sect-ion and an external flange at its upper end arranged within said socket, a screen arranged between the flange of said relief pipe and the shoulder in said socket, and a clamping sleeve sur` rounding` said relief pipe and bearing against the flange thereof and having a screw connection with said hess.

In testimony whereof' I affix my signature.

FREDERICK A. TRAUT. 

